before i had my 85 i had a 83R i had geared for trail riding before i switched to dunes, i had stock port milled head, stock carb, stock pipe, 13-41 gearing with 20 inch kendras, open air box with a k/n filter, i know it doesnt sound like much but my cousins raptor and i would go all over the hills in homeland california and we had about the same power, even when i had it ported polished milled to 22cc dome stock carb jetted, and answer silencer for the sand i ran 13/38 gearing and 20 inch sand snake paddles.
adam
86 ATC 500R the duner..
85 ATC 500R...the not quite finished faster duner
1985 ATC 250R Bone stock!!
1985 ATC250R mx/duner
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94 Banshee 400PV Cheetah 105RWHP